when the kids were about 10 or 12, in the morning they got up and stuck a bowl of milk in the microwave for a minute.
one morning they rushed into my bedroom, "papa, papa, il y a un probleme avec la microonde";
sure enough it looked like a thunderstorm in there with lightening strikes. I ducked down and moved across the floor to unplug the damed thing.
smoke was coming out the sides.
It wasn't anything my kids did, there was just a bowl of milk inside, no utensils.
I've heard of people that cook EVERYTHING in their microwave, fish, meat, whatever. I've alays thought that that could not possibly be healthy.